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Specific heat and critical behavior of Tl0.3MoO3 near the Peierls phase transition |
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| Authors: | Junfeng Wang Rui Xiong Changzhen Li Di Yin Zheng Tang Ququan Wang Jing Shi Xiaokui Qin |
| Institution: | a Department of Physics, Wuhan University, Wuhan 430072, China b School of Remote Sensing and Information Engineering, Wuhan University, Wuhan 430072, China c Key Lab of Acoustic and Photonic Material and Devices of Ministry of Education of China, Wuhan University, Wuhan 430072, China d International Center for Material Physics, Shenyang 110015, China e Pohl Institute of Solid State Physics, Tongji University, Shanghai 200092, China |
| Abstract: | The specific heat of the quasi-one-dimensional charge-density-wave (CDW) compound Tl0.3MoO3 has been measured using an adiabatic continuous heating method from 100 to 220 K. A specific heat jump associated with the Peierls phase transition occurs at 172.3 K. A good scaling relation between the excess specific heat and the susceptibility is found between 140 K and 190 K. Further analysis indicates that the width of the critical region of Tl0.3MoO3 is about 10 K and the specific-heat critical behavior can be well described by the three-dimensional XY model. |
| Keywords: | 71 45 Lr 65 40 Ba |
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